net: ehea: avoid null pointer dereference
BugLink: https://bugs.launchpad.net/bugs/1878232 commit 1740c29a upstream. ehea_get_port may return NULL. Do not dereference NULL value. Fixes: 8c4877a4 ("ehea: Use the standard logging functions") Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Acked-by: Thadeu Lima de Souza Cascardo <cascardo@debian.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ian May <ian.may@canonical.com> Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
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